Thelansis

  Polymyositis is characterized by chronic muscle inflammation and weakness involving the skeletal muscles and the weakness generally starts in the proximal muscles such as muscles of the upper arm and shoulder and the upper leg and hip. Polymyositis has non-specific clinical features including proximal muscle weakness and elevated serum creatine kinase. The age of onset is over 20 years, with most patients aged 45-60 years. The disease develops gradually over a period of 3 to 6 months with a variable impact on physical capacities: difficulty lifting objects, raising arms, kneeling, and climbing or descending stairs.   ·        Arthralgia may be found and myalgia is reported in less than 30% of patients. Other signs include neck flexor weakness, fatigue, stiffness, weight loss anorexia, dysphagia, and less commonly dysphonia. ·        The estimated annual incidence cases range between 1.5 to 2.2 cases per 150,00...